Leopold weil



(No Model.)

L. WBIL.

v AUTOMATIU ELECTRIC GUT-OFF FOR WATER PIPES. No. 357,055.

N. PETERS. PhMB-Lihbgnphcr. Wnhinghn. D. C.

NITED STATES PATENT FFICE.

LEOPOLD WE IL, OF NEW YORK, N. Y.

AUTOMATIC ELECTRIC CUT-OFF FOR WATER-PIPES.

SPECIFICATION forming part of Letters lfatent No. 357,055, dated February 1, 1887.

Application filed June 19, 1886. Serial No. 205,651. (No model.)

To a,ZZ whom it mag concern:

Be it known that I, LEOPOLD WEIL, a citizen of the United States, residing at New York city, in the county of New York and State of- New York, have invented certain new and useful Improvements in Automatic VVater-Supply Out-fis, of which the following is a full, clear, and exact description.

This invention is in the nature of a specific application of the generic features of my invention set forth in Letters Patent No.336,7 7 3, granted February 23, 1886. A

The invention herein consists in shutting off the water-supply of buildings automatically through the medium of apparatus rendered operative by the presence of water at unusual or undesired points. For example, in the illustration in the accompanying drawing of my invention, a water-absorbing device is electro-magnet, j.

constructed to render operative an electrical apparatus when said device comes incontact with water, and the electrical apparatus is connected with a cock in the water-supply pipe of a building and closes said cock. The drawing shows my apparatus in elevation.

The watersupply pipe a is provided with a cut-off cock, b, which has its lever-handle 0 connected by a'chain or other flexible medium, d, with a weight, a. This weight is connected with a rod or link, f, which is suspended from alever, g, and this lever is engaged by a hook or 'detent, h, on an armature-lever, i, of an As shown in the drawing, the parts are in position with the valve open. \Vhen the armature is actuated by the electromagnet, its hook his disengaged from or releases the lever g, and the weight is then free to act by gravity, and so acting pulls its link from the lever, and then acting upon the chain and through it on the valve-lever turns said valve or cock and shuts off the watersupply.

To effect the automatic shutting off of the water through such mechanism, I connect the electro magnet in open circuit with a waterdetecting device, k, of substantially the construction and operation of the device of my aforementioned patent. This device, when in the presence of water, closes the electric circuit. A series of such devices may be ar- U ranged in different places in a building supplied with water, such as the wash-stands, closets, exposed pipes, 8:0. and connected with the electro-magnets in circuit, and whenever a leak or an overflow occurs it will be immediately detected and the apparatus set'in operation.

As an auxiliary, an alarm, Z, may be placed in the same circuit with the detector or magnet.

I do not limit myinvention to the details of construction here shown, but may vary them within the state of the art.

\Vhat I claim is- 1. A water-supply pipe provided with a cutoff valve or cock, an electro-magnet and connections interposed between the two to retain said valve open and to close it, and a waterdetecting device in electric circuit with the electro-magnet, rendered operative by the undesirable presence of water to operate said electro-magnet and its connections with the valve and close said valve, substantially as described.

2. .A water-supply pipe provided with a cutofl valve or cock, an electro-magnet and connections interposed between the two to retain said valve 'open and to close it, and a waterdetecting device in electric circuit with the electro-magnet, rendered operative by the undesirable presence of water to operate said electro-magnet and its connections with the valve and close said valve, and an alarm in the same circuit, substantially as described.

3. The electro-magnet in circuit and combination with the electric water-detecting device, which is rendered operative by the undesirable presence of water, a lever held in- 

